Fire damaged a room and extended into the attic of a vacant two-story home in Hancock Park Friday.
The 33 firefighters dispatched at 11:14 a.m. to 645 N. Rossmore Ave. had the fire out within 20 minutes of arrival, said Margaret Stewart of the Los Angeles Fire Department.
No injuries were reported and no occupants were located, Stewart said.
Arson investigators were called to the location.